提出一种新的轮廓特征点提取方法，它利用最小二乘法拟合轮廓曲线，结合斜率、曲率信息提取特征点。
A new feature-points extraction algorithm is proposed, which USES least square method fitting contour curve and combines slope, curvature information to extract feature-points.
用直接斜率法进行波前重构，采用最小二乘解，并用波前重构矩阵的条件数作为其病态程度的判据。
Zonal wavefront reconstructing model is adopted, the least squares solution is applied, and the condition number of wavefront reconstruction matrix is used to estimate how its morbidity is.
用直接斜率法进行波前重构，采用最小二乘解，并用波前重构矩阵的条件数作为其病态程度的判据。
Zonal wavefront reconstructing model is adopted, the least squares solution is applied, and the condition number of wavefront reconstruction matrix is used to estimate how its morbidity is.
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